 #include <iostream>
#include <vector>
using namespace std;
int main(){
	vector<int>v;
	v.push_back(1);
	v.push_back(2);
	v.push_back(3);
	v.push_back(4);
	vector<int>::const_iterator i;
	for(i=v.begin();i!=v.end();i++)
	cout<<*i<<",";
	cout<<endl;
	vector<int>::reverse_iterator r;
	for( r = v.rbegin();r != v.rend();r++ )
    cout << * r << ",";
    cout << endl;
    vector<int>::iterator j;
    for( j = v.begin();j != v.end();j ++ )
    * j =	100;
    for( i = v.begin();i != v.end();i++ ) 
	cout << * i << ",";
    return 0;
}
